Appendix C14 Los Trancos County <strong>Water</strong> District
Los Trancos Woods Northern, Blue Oaks, Vista Verde Los Trancos County <strong>Water</strong> District Service Area 1 DSS Input Sheet FINAL INPUT SHEET Base Year Average Use and Indoor Percentages by Billing Category for DSS Model 2 Year Average 9 , gpd/a Indoor Average 10 , gpd/a Indoor Average, gpd/a Indoor Average, gpd/a Indoor Average, gpd/a Indoor Average, gpd/a Indoor Average, gpd/a Indoor Average, gpd/a Indoor Average, gpd/a Indoor Average, gpd/a Indoor 2001 228 66% 567 26% Number of Data for DSS Model - - Base Year 2001 <strong>Water</strong> Use <strong>Water</strong> Use, MGD Category Accounts 2001 Use Profile FY. 2001 3,8 gpd/a 2 2001 Percent gcd gcd Los Trancos Wood 140 228 0.03 32.33% 43 28 Northern, Blue Oak 118 567 0.07 67.67% 91 24 0 0 0.00 0.00% 0 0 0.00 0.00% Total Dwelling Units in Census 2000 for Portola Valley Town Service Area Billing Difference Single family 2000 Units No. Buildings 2000 3 and census data Accounts - Year between billing 0 0 0.00 0.00% 1-detached 1,510 1,510 0 0 0.00 0.00% 1-attached 34 34 0 0 0.00 0.00% Subtotal 1,544 1,544 265 -1,279 0 0 0.00 0.00% Multi family Total 258 0.10 100.00% 2-units 0 0 Total <strong>Water</strong> Purchased (produced) 4 = 0.11 MGD 3-4 units 0 0 Unaccounted For <strong>Water</strong> (UFW) 5 = 6.6% Percent From 5 year BAWUA Survey average 5 to 9 units 84 12 Estimated UFW for DSS Model = 7.0% Percent 7% if actual is < 7%, otherwise = E25 10-19 units 97 6 <strong>Water</strong> Produced for use in DSS Model 0.106 MGD Add UFW to Total <strong>Water</strong> Use 20 or more units 84 2 Peaking Factor NA Provided by Agency or <strong>SFPUC</strong> <strong>Water</strong> Master Plan (or NA) mobile homes 0 0 Peaking Factor for DSS Model= 1.6 If NA use default value of 1.6. Subtotal 265 20 0 -20 MF Average = 13.15 units/building units/account - Blue cells are entered by modeler - Yellow cells are input to DSS Model Total SF + MF units = 1,809 NOTES 1. - Communities served are unincorporated area of Santa Clara and San Mateo Counties according to BAWUA survey Population and Household Size in Census 2000 for Portola Valley Town Estimated Residential Portola Valley Town Portola Valley Town Service Area Census Population Estimated Population Population 2 - Average water use water determined from the LTCWD Forecast Study (2002). The average water use per account in this study differs by 2% from the average computed from billing data. Indoor use is based on the lowest month in the winter from monthly billing data. 3 - Number of accounts is based on the LTCWD Forecast Study (2002). 100% of the accounts are single family (SF) residential. Those accounts in the Los Trancos Woods zone are in a separate category because the water usage is low than the rest of the service area. 4 - Total water Purchased (produced) taken from BAWUA for Fiscal Year 2001-2002 or agency if provided. 5 - Unaccounted for <strong>Water</strong> (UFW) is the percent difference between the total water purchased and the total water use. 6 - For reference see additional population estimates provided in population and employment estimates corresponding to service area table. 7 - No multi-family households are included in the service area. MF household size was assumed zero. SF household size was assumed to be 2.87 (similar to nearby Town of Portola Valley). Reconcile agency account billing data and census data Data Sources / Notes 2000 2001 2001 Estimated growth from 2000 to 2001 (CA DOF <strong>Projections</strong>): 0.40% Total Population from Census data 6 = 4,462 4480 Estimated employment growth from 2000 to 2001 (ABAG Employment <strong>Projections</strong>): 0.23% Subtract Institutionalized Population = 36 36 <strong>Water</strong> use for the institutionalized population is accounted for in nonresidential billing categories Residential Population = 4,426 4,444 Residential population shown corresponds to the city or cities represented by Census data Avg. HHS 7 = 2.45 MF Pop @ MF HHS 7 0.00 0 0 0 0.0% Percent of Population that is MF SF Pop = 4,426 4,444 740 100.0% Percent of Population that is SF SF HHS 7 = 2.87 Total 740 100.0% -515 Difference in our estimate and average of 2000-2001 and 2001-2002 BAWUA Surveys -479 Difference in our estimate and the average 2000-2001 and 2001-2002 BAWUA Surveys including institutionalized population 2000 Census Data Average household size 2.58 Estimate Service Area Dwelling Units for 2001 Average household size of owner-occupied unit 2.75 SF Res 258 Equals billing accounts in 2001 from cell C15 Average household size of renter-occupied unit 1.67 MF Res 1,552 Equals billing accounts in 2001 from cell C16 times average units per building in cell L31 Homeowner vacancy rate (percent) 0.20 Rental vacancy rate (percent) 6.20 Population and Employment Estimates Corresponding to Service Area Housing Characteristics from U.S. Census Bureau Meter for assumed 50 units per building. Meter for mobile home parks, assume 50 per park. Data Sources / Notes Population Employment 2000 Census data for jurisdiction 4,462 NA 2000 ABAG (jurisdictional) 4,462 880 2005 ABAG Projection (jurisdictional) 4,800 890 2000 ABAG (subregional) 6,905 1,130 2005 ABAG Projection (subregional) 7,300 1,140 2000 Department of Finance Benchmark 4,462 From State of California Department of Finance (DOF) table E-4 as of 4-1-2000. Website www.dof.ca.gov 2001 Department of Finance Estimate 4,480 From State of California Department of Finance table E-4 as of 1-1-2001. Website www.dof.ca.gov 2002 Department of Finance Estimate 4,490 From State of California Department of Finance table E-4 as of 1-1-2002. Website www.dof.ca.gov FY 2000-2001 BAWUA service area 1,250 NA Data Prepared : July 24, 2003 By: N. Foged FY 2001-2002 BAWUA service area 1,260 NA Revised: June 7, 2004 By: N. Foged 2001 Employment in Service Area (input to DSS Model) = 0 Assume that there is no service area employment because, "the District is and will remain into the future as 100% single family residential." (LTCWD 2003). Definitions / Abbreviations ABAG Association of Bay Area Governments MF multi family BAWUA Bay Area <strong>Water</strong> Users Association MGD million gallons per day DSS Decision Support System Model No. number du dwelling unit Pop population FY Fiscal Year Res residential gpd/a gallons per day / per account SF single family gpd gallons per day UFW unaccounted for water HHS household size
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San Francisco Public Utilities Comm
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List of Tables, Figures, and Append
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List of Tables, Figures, and Append
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Glossary Account Average gal/day/ac
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Executive Summary INTRODUCTION In F
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Section 1 Introduction
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SECTIONONE Introduction retail serv
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SECTIONONE Introduction 1.3 GENERAL
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Section 2 Approach to Developing Wa
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SECTIONTWO Approach to Developing W
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SECTIONTWO Approach to Developing W
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SECTIONTHREE Establishing Base - Ye
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Section 4 Water Demand Forecasting
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SECTIONFOUR Water Demand Forecastin
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SECTIONFOUR Water Demand Forecastin
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SECTIONFOUR Water Demand Forecastin
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Section 5 Water Demand Projections
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SECTIONFIVE Water Demand Projection
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SECTIONFIVE Water Demand Projection
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Section 6 References
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SECTIONSIX References Hayward, City
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Appendix A Description of SFPUC Who
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- Page 81 and 82: Appendix C1 Alameda County Water Di
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- Page 85 and 86: City of Brisbane Water Service Area
- Page 87 and 88: Appendix C3 Burlingame, City of
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- Page 91 and 92: Cal Water Bear Gulch Water Service
- Page 93 and 94: Appendix C5 California Water Servic
- Page 95 and 96: 18.40 18.20 18.00 17.80 17.60 17.40
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- Page 99 and 100: Appendix C7 Coastside County Water
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- Page 103 and 104: City of Daly City Water Service Are
- Page 105 and 106: Appendix C9 East Palo Alto, City of
- Page 107 and 108: 5.0 4.5 4.0 3.5 3.0 2.5 2.0 City of
- Page 109 and 110: Estero Municipal Improvement Distri
- Page 111 and 112: Appendix C11 Guadalupe Valley Munic
- Page 113 and 114: 1.2 1.0 0.8 0.6 0.4 0.2 0.0 Guadalu
- Page 115 and 116: Base Year Average Use and Indoor Pe
- Page 117 and 118: Appendix C13 Hillsborough, Town of
- Page 119: 4.00 3.90 3.80 3.70 3.60 3.50 Town
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- Page 125 and 126: 5.2 5.0 4.8 4.6 4.4 4.2 4.0 3.8 3.6
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- Page 135 and 136: Appendix C19 Mountain View, City of
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- Page 139 and 140: North Coast County WD Water Service
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- Page 155 and 156: 7 6.9 6.8 6.7 6.6 6.5 6.4 6.3 6.2 6
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- Page 159 and 160: Appendix C27 Skyline County Water D
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- Page 167 and 168: 28.0 27.0 26.0 25.0 24.0 23.0 City
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Appendix D Summary of SFPUC Wholesa
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Appendix D Summary of SFPUC Wholesa
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Appendix D Summary of SFPUC Wholesa